🇮🇳 India · Hydraulic works
Kallanai Grand Anicut
Sangam Period, Early Historic to Colonial · Tamil Chola (Sangam)
2nd century Chola granite anicut (329 m, 150 CE) on Kaveri River, oldest functional dam in world irrigating one million acres.
🇮🇳 India · Hydraulic works
Dholavira Reservoirs — Harappan Urban Hydraulics
Harappan (Early to Late Harappan 3000–1800 BCE) · Harappan (Indus Valley Civilization Kotada Timba)
Harappan desert city 16 rock-cut reservoirs and dam-fed canals 3000–1800 BCE on Kutch island.
🇮🇳 India · Hydraulic works
Dholavira Rock-Cut Reservoirs – Rann of Kutch
Early to Mature Harappan to Late Harappan · Harappan (Sindhu–Sarasvati)
16 Harappan rock-cut reservoirs (2600–1900 BCE) — 250,000 m³ desert catchment, Dholavira.
🇮🇳 India · Hydraulic works
Kallanai North Channel — Grand Anicut Kaveri North Branch
Classical Sangam to Colonial · Early Chola, British colonial (Cotton)
Chola Karikalan 2nd CE north Kollidam regulators with 12 vents and 1804 Cotton arches, oldest working dam distributary.
🇮🇳 India · Hydraulic works
Hampi Aqueduct and Tungabhadra Hydraulic System
Medieval Indian (Vijayanagara Empire) · Vijayanagara Hindu imperial (Telugu–Kannada)
Vijayanagara 5-km aqueduct with 19 tanks and stepped pushkarani feeding 500k city 14th–16th c.
🇮🇳 India · Hydraulic works
Kaveripakkam Eri (Tank) — Pallava Hydraulic Reservoir
Medieval Tamil (Pallava–Chola) · Tamil Dravidian (Pallava and Chola imperial)
Pallava eri tank 2.1×1.4 km 740 CE still irrigating 295 ha via tumpu sluices, inscription-documented.
🇮🇳 India · Hydraulic works
Kallur Chola Tank (Kallur Eri) – Thanjavur Outlier
Chola Middle (Rajaraja I) · Tamil Chola (Muvendar)
95-ha Chola eri tank (c.1010 CE) at Kallur — Brihadeeswarar temple hydraulic outlier.
🇮🇳 India · Hydraulic works
Kallanai Grand Anicut East Channel
Early Historic to Medieval · Early Chola, Medieval Chola, Vijayanagara
800-m-east Kallanai east channel with 9-sluice Chola regulator feeding east delta.
🇮🇳 India · Hydraulic works
Kallanai Kollidam North Sluice Extension
Early Historic to Chola Medieval · Chola (Early and Medieval)
95-m north Kollidam offtake with 12 dovetail sluice bays saving delta from avulsion.
🇮🇳 India · Hydraulic works
Kallanai South Sluice — Grand Anicut Vennar Distributary Head
Chola Early historic to Medieval (100 – 1030 CE) · Tamil Chola hydraulic statecraft
South Vennar regulator of 2nd-c Chola anicut with Rajendra I inscriptions 1012 CE.